100-160 Question 127
Select 3You are tasked with identifying the source of network connectivity issues reported by employees in your organization. During troubleshooting, you need to confirm the IP address of an internal web server, inspect the open network connections on your workstation, and capture network traffic for further analysis. Which tools would you use?
- A
nslookup
- B
netstat
- C
tcpdump
- D
ping
- E
traceroute
Show answer and explanation
Correct answers: A, B, C
Explanation
To troubleshoot the reported network connectivity issues, you need to use multiple tools. 'nslookup' allows you to verify the IP address of the web server by querying DNS. 'netstat' helps you inspect active network connections on your workstation, which could reveal issues like port conflicts or unauthorized connections. 'tcpdump' provides deep visibility into network traffic by capturing packets for analysis. While 'ping' and 'traceroute' are useful for basic network diagnostics, they do not meet the specific requirements of this scenario.
- A. Correct.
nslookup is used to query DNS servers and retrieve IP address information for a given hostname, making it suitable for confirming the internal web server's IP address.
- B. Correct.
netstat is used to display active network connections, ports in use, and other network statistics, which is helpful for inspecting open network connections on your workstation.
- C. Correct.
tcpdump is a packet analyzer that captures and inspects network traffic, which is essential for further analysis of the connectivity issue.
- D. Incorrect.
ping is primarily used to test network reachability and measure latency, but it does not provide detailed information about DNS, open connections, or traffic capture.
- E. Incorrect.
traceroute is used to trace the route packets take to a destination, which may help identify network path issues but does not address the specific tasks in this scenario.